Find an explanation of what causes concussions and learn how computer software can assess damage due to a concussion. Also learn how neuroscientists use digital imaging to monitor long-term brain trauma. A QUEST video produced by KQED. An Educator Guide is included in support materials.

It's becoming harder to imagine our lives without digital technology. But do we use it too much? Watch Multitasking at M.I.T. from FRONTLINE’s Digital Nation and explore the contrast between students' and teachers' views on laptops in the classroom. Are they a massive distraction, or a valuable tool for a generation of multitaskers?

Ever have an argument with someone, and no matter how many facts you provide, you just can’t get that person to see it your way? One big reason for this is cognitive bias, which is a limitation in our thinking that can cause flaws in our judgement. Confirmation bias is a specific type of cognitive bias that motivates us to seek out information we already believe and ignore or minimize facts that threaten what we believe. Studies show that when people are presented with facts that contradict what they believe, the parts of the brain that control reason and rationality go inactive. But, the parts of the brain that process emotion light up like the Fourth of July. In this video, host Myles Bess dives into the research and offers some tips to combat confirmation bias. This resource is part of the News and Media Literacy Collection.

Learn about the high risk fetal condition known as Twin-Twin Transfusion Syndrome in this clip from the series TWICE BORN. Twin-Twin Transfusion Syndrome is a condition in which identical twins share a placenta and pass the mother's blood unevenly between them, causing one twin to become too large and the other to become too small. The large baby has to pump too much blood for its heart to keep up with, while the small twin becomes too small to properly develop. As a result, both twins can die suddenly in utero. When diagnosed early, fetal surgeons may be able to intervene and correct the condition.

Learn how fetal surgeons can help repair a birth defect of the spine known as Spina Bifida in this clip from the series TWICE BORN. Spina bifida is a condition in which a hole in the spinal column leaves a section of the spinal cord and spinal nerves exposed through an opening in an unborn baby's back. When expectant mothers and the fetus meet the criteria, surgeons can operate about halfway through the pregnancy to close the hole and minimize the nerve damage. By repairing the hole, doctors hope to improve the quality of the child's life with greater mobility and independence.

Your body needs food for energy, vitamins and minerals. But food needs to be broken down into a substance your body can use. That’s the job of your digestive system. Find out more on this episode of Science Trek. Host Joan Cartan-Hansen and her guests, gastroenterologists Drs. Matt Sericati and Brian Story answer students’ questions.

Why do we have bones? What do they do? What are they called? This animated video shows how bones are important to everyday tasks and movements. The spine, rib cage, tibia, femur and skull are shown within a body shape. Various parts of the body are featured.

Senses are so exciting! In this short video from The Cat in the Hat Knows a Lot About That!, The Cat sings a song about all five of your senses. There are so many things to observe and discover, just by using our senses!

This video from Curious George introduces students to the life cycle of mosquitoes. The students in the video observe mosquitoes in their early stages of development—as larvae and pupae—in a typical breeding ground: a birdbath. They also have a chance to view adult mosquitoes under a microscope to learn which mosquito species are responsible for certain diseases.

The heart’s job is to pump blood, so it’s important to know more about blood. Blood does more than just carry oxygen to your cells. The body’s circulatory system keeps you warm, carries away waste and helps you stay healthy. There's more to blood than you think.